Plastic molding apparatus

Claim 1

APPARATUS FOR BLOW MOLDING ARTICLES HAVING NECKS COMPRISING; A FIRST BLOCK AND A SECOND BLOCK MOUNTED IN AN OPPOSED SPACED APART PARALLEL RELATIONSHIP; SAID FIRST BLOCK INCLUDING AT LEAST A FIRST BLOW MOLD AND A SECOND BLANK MOLD, MOUNTED THEREIN IN A SPACED APART RELATIONSHIP, SAID BLANK MOLD AND SAID BLOW MOLD EACH COMPRISING SEPARABLE SECTIONS BIASED TO PROJECT IN OPEN POSITIONS OUTWARD OF SAID BLOCK AND SLIDABLE INTO CLOSED POSITIONS FLUSH WITH SAID BLOCK, SAID SECOND BLOCK HAVING MOUNTED THEREON FIRST AND SECOND FIXED PLUNGERS, ONE INDIVIDUAL TO EACH OF SAID MOLDS AND REGISTRABLE THEREWITH, A PLURALITY OF PAIRS OF SEPARABLE NECK MOLD SECTIONS, ONE PAIR SURROUNDING EACH OF SAID PLUNGERS, EACH OF SAID NECK MOLD SECTIONS BEING SLIDABLE INTO AND OUT OF OPEN AND CLOSED POSITIONS AND ADJACENT THE OUTERMOST EXTREMITY OF SAID PLUNGERS, AND ADJACENT THE NEAR FACE OF SAID SECOND BLOCK RESPECTIVELY, MEANS FOR MOVING SAID FIRST AND SECOND BLOCKS INTO A FACE TO FACE ABUTTING ENGAGEMENT WITH SAID PLUNGERS REGISTERED WITH THEIR OPPOSED MOLD SECTIONS; SWITCH MEANS RESPONSIVE TO SAID ENGAGEMENT; MEANS ACTUATED BY SAID SWITCH MEANS FOR INJECTING PLASTIC INTO SAID BLANK MOLD TO PRODUCE A BLANK; AND MEANS ACTUATED BY SAID SWITCH FOR SIMULTANEOUSLY INTRODUCING AIR INTO A BLANK IN SAID BLOW MOLD TO PRODUCE ONE OF SAID ARTICLES; AND MEANS FOR ALIGNING SAID FIRST AND SECOND PLUNGERS WITH SAID SECOND AND FIRST MOLDS RESPECTIVELY ON SAID FIRST BLOCK AFTER SEPARATION OF SAID BLOCKS.